1 #include "AliAnalysisTaskLambdaBayes.h"
7 #include "AliInputEventHandler.h"
8 #include "AliAODEvent.h"
9 #include "AliAODVertex.h"
10 #include "AliAODTrack.h"
11 #include "AliESDtrack.h"
12 #include "AliCentrality.h"
13 #include "AliVHeader.h"
14 #include "AliAODVZERO.h"
16 #include "AliOADBContainer.h"
19 #include "AliGenHijingEventHeader.h"
20 #include "AliMCEvent.h"
21 #include "AliAODMCHeader.h"
22 #include "AliAODMCParticle.h"
24 #include "AliESDtrackCuts.h"
25 #include "AliESDVertex.h"
26 #include "AliEventplane.h"
27 #include "AliAnalysisManager.h"
31 Float_t AliAnalysisTaskLambdaBayes::fPtLambdaMin[AliAnalysisTaskLambdaBayes::nPtBin] = {0.,0.25,0.5,0.75,1,1.5,2,2.5,3,3.5,4.,5.,6.};// ptmin bin
32 Float_t AliAnalysisTaskLambdaBayes::fPtLambdaMax[AliAnalysisTaskLambdaBayes::nPtBin] = {0.25,0.5,0.75,1,1.5,2,2.5,3,3.5,4.,5.,6.,10.};// ptmax bin
36 //using namespace std;
38 ClassImp(AliAnalysisTaskLambdaBayes)
39 //_____________________________________________________________________________
40 AliAnalysisTaskLambdaBayes::AliAnalysisTaskLambdaBayes():
42 fVtxCut(10.0), // cut on |vertex| < fVtxCut
43 fEtaCut(0.8), // cut on |eta| < fEtaCut
44 fMinPt(0.15), // cut on pt > fMinPt
79 // Default constructor (should not be used)
80 fList->SetName("contLambdaBayes1");
81 fList2->SetName("contLambdaBayes2");
82 fList3->SetName("contLambdaBayes3");
84 fList->SetOwner(kTRUE);
85 fList2->SetOwner(kTRUE);
86 fList3->SetOwner(kTRUE);
88 TFile *fmism = new TFile("$ALICE_ROOT/TOF/data/TOFmismatchDistr.root");
89 fHmismTOF = (TH1F *) fmism->Get("TOFmismDistr");
91 TFile *fchDist = new TFile("$ALICE_ROOT/TOF/data/TOFchannelDist.root");
92 fHchannelTOFdistr = (TH1D *) fchDist->Get("hTOFchanDist");
94 for(Int_t i=0;i < nCentrBin;i++){
104 for(Int_t i=0;i < 4;i++){
109 for(Int_t i=0;i < 1000;i++){
116 fMassLambda[i] = 0.0;
120 //______________________________________________________________________________
121 AliAnalysisTaskLambdaBayes::AliAnalysisTaskLambdaBayes(const char *name):
122 AliAnalysisTaskSE(name),
123 fVtxCut(10.0), // cut on |vertex| < fVtxCut
124 fEtaCut(0.8), // cut on |eta| < fEtaCut
125 fMinPt(0.15), // cut on pt > fMinPt
157 fHchannelTOFdistr(0),
161 DefineOutput(1, TList::Class());
162 DefineOutput(2, TList::Class());
163 DefineOutput(3, TList::Class());
164 DefineOutput(4, TList::Class());
166 // Output slot #1 writes into a TTree
167 fList->SetName("contLambdaBayes1");
168 fList2->SetName("contLambdaBayes2");
169 fList3->SetName("contLambdaBayes3");
171 fList->SetOwner(kTRUE);
172 fList2->SetOwner(kTRUE);
173 fList3->SetOwner(kTRUE);
175 TFile *fmism = new TFile("$ALICE_ROOT/TOF/data/TOFmismatchDistr.root");
176 fHmismTOF = (TH1F *) fmism->Get("TOFmismDistr");
178 TFile *fchDist = new TFile("$ALICE_ROOT/TOF/data/TOFchannelDist.root");
179 fHchannelTOFdistr = (TH1D *) fchDist->Get("hTOFchanDist");
181 for(Int_t i=0;i < nCentrBin;i++){
191 for(Int_t i=0;i < 4;i++){
196 for(Int_t i=0;i < 1000;i++){
203 fMassLambda[i] = 0.0;
206 //_____________________________________________________________________________
207 AliAnalysisTaskLambdaBayes::~AliAnalysisTaskLambdaBayes()
212 //______________________________________________________________________________
213 void AliAnalysisTaskLambdaBayes::UserCreateOutputObjects()
216 fPIDCombined=new AliPIDCombined;
217 fPIDCombined->SetDefaultTPCPriors();
218 fPIDCombined->SetDetectorMask(AliPIDResponse::kDetTOF);
220 Float_t invMmin = 1.115-0.005*8;
221 Float_t invMmax = 1.115+0.005*8;
223 const Int_t nBinPid = 14;
225 Int_t binPid[nBinPid] = {1/*ptLambda*/,8/*EtaPP*/,20/*pt+*/,1/*pt-*/,5/*P+*/,1/*P-*/,2/*TOFmatch+*/,1/*TOFmatch-*/,2/*istrue*/,4/*Nsigma+*/,1/*Nsigma-*/,1/*DeltaPhi+*/,1/*DeltaPhi-*/,1/*Psi*/};
227 Int_t binPid2[nBinPid] = {1/*ptLambda*/,8/*EtaPN*/,1/*pt+*/,20/*pt-*/,1/*P+*/,5/*P-*/,1/*TOFmatch+*/,2/*TOFmatch-*/,2/*istrue*/,1/*Nsigma+*/,4/*Nsigma-*/,1/*DeltaPhi+*/,1/*DeltaPhi-*/,1/*Psi*/};
229 fContPid = new AliPIDperfContainer("contPID",nBinPid,binPid);
230 fContPid->SetTitleX("M_{#Lambda}");
231 fContPid->SetTitleY("centrality (%)");
232 fContPid->SetVarName(0,"p_{T}^{#Lambda}");
233 fContPid->SetVarRange(0,0,10);
234 fContPid->SetVarName(1,"#eta^{#Lambda}");
235 fContPid->SetVarRange(1,-0.8,0.8);
236 fContPid->SetVarName(2,"p_{T}^{Kp}");
237 fContPid->SetVarRange(2,0.3,4.3);
238 fContPid->SetVarName(3,"p_{T}^{Kn}");
239 fContPid->SetVarRange(3,0.3,4.3);
240 fContPid->SetVarName(4,"BayesProb^{Kp}");
241 fContPid->SetVarRange(4,0,1.);
242 fContPid->SetVarName(5,"BayesProb^{Kn}");
243 fContPid->SetVarRange(5,0,1.);
244 fContPid->SetVarName(6,"isTOFmatch^{Kp}");
245 fContPid->SetVarRange(6,-0.5,1.5);
246 fContPid->SetVarName(7,"isTOFmatch^{Kn}");
247 fContPid->SetVarRange(7,-0.5,1.5);
248 fContPid->SetVarName(8,"isLambdaTrue^{Kn}");
249 fContPid->SetVarRange(8,-0.5,1.5);
250 fContPid->SetVarName(9,"N#sigma^{Kp}");
251 fContPid->SetVarRange(9,1.25,6.25);
252 fContPid->SetVarName(10,"N#sigma^{Kn}");
253 fContPid->SetVarRange(10,1.25,6.25);
254 fContPid->SetVarName(11,"#Delta#phi^{Kp}");
255 fContPid->SetVarRange(11,-TMath::Pi(),TMath::Pi());
256 fContPid->SetVarName(12,"#Delta#phi^{Kn}");
257 fContPid->SetVarRange(12,-TMath::Pi(),TMath::Pi());
258 fContPid->SetVarName(13,"#Psi");
259 fContPid->SetVarRange(13,-TMath::Pi()/2,TMath::Pi()/2);
261 fContPid2 = new AliPIDperfContainer("contPID2",nBinPid,binPid2);
262 fContPid2->SetTitleX("M_{#Lambda}");
263 fContPid2->SetTitleY("centrality (%)");
264 fContPid2->SetVarName(0,"p_{T}^{#Lambda}");
265 fContPid2->SetVarRange(0,0,10);
266 fContPid2->SetVarName(1,"#eta^{#Lambda}");
267 fContPid2->SetVarRange(1,-0.8,0.8);
268 fContPid2->SetVarName(2,"p_{T}^{Kp}");
269 fContPid2->SetVarRange(2,0.3,4.3);
270 fContPid2->SetVarName(3,"p_{T}^{Kn}");
271 fContPid2->SetVarRange(3,0.3,4.3);
272 fContPid2->SetVarName(4,"BayesProb^{Kp}");
273 fContPid2->SetVarRange(4,0,1.);
274 fContPid2->SetVarName(5,"BayesProb^{Kn}");
275 fContPid2->SetVarRange(5,0,1.);
276 fContPid2->SetVarName(6,"isTOFmatch^{Kp}");
277 fContPid2->SetVarRange(6,-0.5,1.5);
278 fContPid2->SetVarName(7,"isTOFmatch^{Kn}");
279 fContPid2->SetVarRange(7,-0.5,1.5);
280 fContPid2->SetVarName(8,"isLambdaTrue^{Kn}");
281 fContPid2->SetVarRange(8,-0.5,1.5);
282 fContPid2->SetVarName(9,"N#sigma^{Kp}");
283 fContPid2->SetVarRange(9,1.25,6.25);
284 fContPid2->SetVarName(10,"N#sigma^{Kn}");
285 fContPid2->SetVarRange(10,1.25,6.25);
286 fContPid2->SetVarName(11,"#Delta#phi^{Kp}");
287 fContPid2->SetVarRange(11,-TMath::Pi(),TMath::Pi());
288 fContPid2->SetVarName(12,"#Delta#phi^{Kn}");
289 fContPid2->SetVarRange(12,-TMath::Pi(),TMath::Pi());
290 fContPid2->SetVarName(13,"#Psi");
291 fContPid2->SetVarRange(13,-TMath::Pi()/2,TMath::Pi()/2);
295 const Int_t nDETsignal = 100; // mass
296 Double_t binDETsignal[nDETsignal+1];
297 for(Int_t i=0;i<nDETsignal+1;i++){
298 binDETsignal[i] = invMmin + i*(invMmax - invMmin) / nDETsignal;
300 const Int_t nDETsignal2 = 10; // centrality
301 Double_t binDETsignal2[nDETsignal2+1];
302 for(Int_t i=0;i<nDETsignal2+1;i++){
303 binDETsignal2[i] = i*100./ nDETsignal2;
305 fContPid->AddSpecies("Lambda",nDETsignal,binDETsignal,nDETsignal2,binDETsignal2);
306 fContPid2->AddSpecies("Lambda2",nDETsignal,binDETsignal,nDETsignal2,binDETsignal2);
308 fList->Add(fContPid);
309 fList->Add(fContPid2);
311 hMatching[0] = new TH2F("hMatchAll","TOF matched (all);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
312 hMatching[1] = new TH2F("hMatchPi","TOF matched (#pi);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
313 hMatching[2] = new TH2F("hMatchKa","TOF matched (K);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
314 hMatching[3] = new TH2F("hMatchPr","TOF matched (p);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
316 hTracking[0] = new TH2F("hTrackingAll","TPC tracks (all);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
317 hTracking[1] = new TH2F("hTrackingPi","TPC tracks (#pi);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
318 hTracking[2] = new TH2F("hTrackingKa","TPC tracks (K);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
319 hTracking[3] = new TH2F("hTrackingPr","TPC tracks (p);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
321 fList2->Add(hMatching[0]);
322 fList2->Add(hMatching[1]);
323 fList2->Add(hMatching[2]);
324 fList2->Add(hMatching[3]);
325 fList2->Add(hTracking[0]);
326 fList2->Add(hTracking[1]);
327 fList2->Add(hTracking[2]);
328 fList2->Add(hTracking[3]);
330 fTOFTPCsignal = new TH2F("hTOFTPCsignal","TOF-TPC signal for protons (1.2 < p_{T} < 1.3 GeV/#it{c}, cent. = 0-20);N#sigma_{TOF};N#sigma_{TPC}",100,-5,5,100,-5,5);
331 fList2->Add(fTOFTPCsignal);
332 fCombsignal = new TH1F("hCombsignal","Combined signal for protons (1.2 < p_{T} < 1.3 GeV/#it{c}, cent. = 0-20);N#sigma",100,0,5);
333 fList2->Add(fCombsignal);
336 char name[100],title[400];
337 for(Int_t i=0;i < nCentrBin;i++){
338 snprintf(name,100,"hPiTPCQA_%i",i);
339 snprintf(title,400,"TPC signal for #pi cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
340 fPiTPC[i] = new TH2F(name,title,50,0,4,200,-10,10);
341 fList3->Add(fPiTPC[i]);
343 snprintf(name,100,"hKaTPCQA_%i",i);
344 snprintf(title,400,"TPC signal for K cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
345 fKaTPC[i] = new TH2F(name,title,50,0,4,200,-10,10);
346 fList3->Add(fKaTPC[i]);
348 snprintf(name,100,"hPrTPCQA_%i",i);
349 snprintf(title,400,"TPC signal for p cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
350 fPrTPC[i] = new TH2F(name,title,50,0,4,200,-10,10);
351 fList3->Add(fPrTPC[i]);
353 snprintf(name,100,"hElTPCQA_%i",i);
354 snprintf(title,400,"TPC signal for e cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
355 fElTPC[i] = new TH2F(name,title,50,0,4,200,-10,10);
356 fList3->Add(fElTPC[i]);
358 snprintf(name,100,"hPiTOFQA_%i",i);
359 snprintf(title,400,"TOF signal for #pi cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
360 fPiTOF[i] = new TH2F(name,title,50,0,4,200,-10,10);
361 fList3->Add(fPiTOF[i]);
363 snprintf(name,100,"hKaTOFQA_%i",i);
364 snprintf(title,400,"TOF signal for K cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
365 fKaTOF[i] = new TH2F(name,title,50,0,4,200,-10,10);
366 fList3->Add(fKaTOF[i]);
368 snprintf(name,100,"hPrTOFQA_%i",i);
369 snprintf(title,400,"TOF signal for p cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
370 fPrTOF[i] = new TH2F(name,title,50,0,4,200,-10,10);
371 fList3->Add(fPrTOF[i]);
373 snprintf(name,100,"hElTOFQA_%i",i);
374 snprintf(title,400,"TOF signal for e cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
375 fElTOF[i] = new TH2F(name,title,50,0,4,200,-10,10);
376 fList3->Add(fElTOF[i]);
386 //______________________________________________________________________________
387 void AliAnalysisTaskLambdaBayes::UserExec(Option_t *)
390 // Called for each event
392 fOutputAOD = dynamic_cast<AliAODEvent*>(InputEvent());
394 Printf("%s:%d AODEvent not found in Input Manager",(char*)__FILE__,__LINE__);
399 Float_t zvtx = GetVertex(fOutputAOD);
405 AliAODMCHeader *mcHeader = dynamic_cast<AliAODMCHeader*>(fOutputAOD->GetList()->FindObject(AliAODMCHeader::StdBranchName()));
407 AliError("Could not find MC Header in AOD");
412 if (TMath::Abs(zvtx) < fVtxCut) {
417 Float_t v0Centr = -10.;
418 Float_t trkCentr = -10.;
419 AliCentrality *centrality = fOutputAOD->GetCentrality();
421 trkCentr = centrality->GetCentralityPercentile("V0M");
422 v0Centr = centrality->GetCentralityPercentile("TRK");
426 v0Centr=100./(fOutputAOD->GetNumberOfTracks()/12.+1);
430 if((TMath::Abs(v0Centr - trkCentr) < 5.0 || (fTypeCol!=2)) && v0Centr>0){ // consistency cut on centrality selection
431 fCentrality = v0Centr;
432 Analyze(fOutputAOD); // Do analysis!!!!
439 //________________________________________________________________________
440 void AliAnalysisTaskLambdaBayes::Analyze(AliAODEvent* aodEvent)
443 Int_t ntrack = aodEvent->GetNumberOfTracks();
445 fPtKp=0.,fPhiKp=0.,fEtaKp=0.;
446 fPtKn=0.,fPhiKn=0.,fEtaKn=0.;
454 Float_t invMmin = 1.115-0.005*8;
455 Float_t invMmax = 1.115+0.005*8;
458 if(fCentrality < 0) icentr = 8;
459 else if(fCentrality < 10) icentr = 0;
460 else if(fCentrality < 20) icentr = 1;
461 else if(fCentrality < 30) icentr = 2;
462 else if(fCentrality < 40) icentr = 3;
463 else if(fCentrality < 50) icentr = 4;
464 else if(fCentrality < 60) icentr = 5;
465 else if(fCentrality < 70) icentr = 6;
466 else if(fCentrality < 80) icentr = 7;
468 Float_t addMismatchForMC = 0.005;
469 if(fCentrality < 50) addMismatchForMC += 0.005;
470 if(fCentrality < 20) addMismatchForMC += 0.02;
472 if(fTypeCol == 0 || fTypeCol == 1) addMismatchForMC = 0.005;
476 Double_t Qx2 = 0, Qy2 = 0;
477 Double_t Qx3 = 0, Qy3 = 0;
478 for(Int_t iT = 0; iT < ntrack; iT++) {
479 AliAODTrack* aodTrack = aodEvent->GetTrack(iT);
485 Bool_t trkFlag = aodTrack->TestFilterBit(fFilterBit);
487 if ((TMath::Abs(aodTrack->Eta()) > 0.8) || (aodTrack->Pt() < 0.2) || (aodTrack->GetTPCNcls() < fNcluster) || !trkFlag)
490 Double_t b[2] = {-99., -99.};
491 Double_t bCov[3] = {-99., -99., -99.};
492 if (!aodTrack->PropagateToDCA(aodEvent->GetPrimaryVertex(), aodEvent->GetMagneticField(), 100., b, bCov))
495 if ((TMath::Abs(b[0]) > 3.0) || (TMath::Abs(b[1]) > 2.4))
498 Qx2 += TMath::Cos(2*aodTrack->Phi());
499 Qy2 += TMath::Sin(2*aodTrack->Phi());
500 Qx3 += TMath::Cos(3*aodTrack->Phi());
501 Qy3 += TMath::Sin(3*aodTrack->Phi());
505 fPsi = TMath::ATan2(Qy2, Qx2)/2.;
507 AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
508 AliInputEventHandler* inputHandler = (AliInputEventHandler*) (man->GetInputEventHandler());
509 AliPIDResponse *PIDResponse=inputHandler->GetPIDResponse();
511 // PIDResponse->GetTOFResponse().SetTrackParameter(0,0.);
512 // PIDResponse->GetTOFResponse().SetTrackParameter(1,0.);
513 // PIDResponse->GetTOFResponse().SetTrackParameter(2,0.018);
514 // PIDResponse->GetTOFResponse().SetTrackParameter(3,50.0);
516 fPIDCombined->SetDetectorMask(AliPIDResponse::kDetTPC|AliPIDResponse::kDetTOF);
519 Double_t probP[10] = {0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
520 Double_t probN[10] = {0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
521 Double_t nSigmaTPC,nSigmaTOF=6,nSigmaTPC2,nSigmaTOF2=6,nSigmaComb,nSigmaComb2;
524 AliAODMCHeader *mcHeader = dynamic_cast<AliAODMCHeader*>(aodEvent->GetList()->FindObject(AliAODMCHeader::StdBranchName()));
525 TClonesArray *mcArray = NULL;
527 mcArray = (TClonesArray*)aodEvent->GetList()->FindObject(AliAODMCParticle::StdBranchName());
531 nmc = mcArray->GetEntries();
533 for(Int_t i=0;i < ntrack;i++){ // loop on tracks
534 AliAODTrack* track = aodEvent->GetTrack(i);
536 AliAODMCParticle *mcp = NULL;
543 Int_t tofMatch = (track->GetStatus() & AliVTrack::kTOFout) && (track->GetStatus() & AliVTrack::kTIME);
547 label = track->GetLabel();
548 if(label != -1 && label < nmc){
549 label = TMath::Abs(label);
550 mcp = (AliAODMCParticle*)mcArray->At(label);
551 pdg = TMath::Abs(mcp->GetPdgCode());
557 /*UInt_t detUsed =*/ fPIDCombined->ComputeProbabilities(track, PIDResponse, probP);
560 if(track->TestFilterBit(fFilterBit) && TMath::Abs(track->Eta()) < 0.8 && track->Charge() > 0){
561 hTracking[0]->Fill(track->Pt(),fCentrality);
563 hTracking[1]->Fill(track->Pt(),fCentrality);
565 hTracking[2]->Fill(track->Pt(),fCentrality);
567 hTracking[3]->Fill(track->Pt(),fCentrality);
568 else if(! mcp){ // Fill matching histo with the prob
569 hTracking[1]->Fill(track->Pt(),fCentrality,probP[2]);
570 hTracking[2]->Fill(track->Pt(),fCentrality,probP[3]);
571 hTracking[3]->Fill(track->Pt(),fCentrality,probP[4]);
575 if(!tofMatch) continue;
577 if(track->TestFilterBit(fFilterBit) && TMath::Abs(track->Eta()) < 0.8 && track->Charge() > 0){
578 hMatching[0]->Fill(track->Pt(),fCentrality);
580 hMatching[1]->Fill(track->Pt(),fCentrality);
582 hMatching[2]->Fill(track->Pt(),fCentrality);
584 hMatching[3]->Fill(track->Pt(),fCentrality);
585 else if(! mcp){ // Fill matching histo with the prob
586 hMatching[1]->Fill(track->Pt(),fCentrality,probP[2]);
587 hMatching[2]->Fill(track->Pt(),fCentrality,probP[3]);
588 hMatching[3]->Fill(track->Pt(),fCentrality,probP[4]);
597 // start analysis Lambda
598 for(Int_t i=0;i < ntrack;i++){ // loop on proton candidate tracks
599 AliAODTrack* KpTrack = aodEvent->GetTrack(i);
605 if(!(KpTrack->Pt() > 0.3 && TMath::Abs(KpTrack->Eta()) < 0.8)) continue;
607 Bool_t isLambda = (KpTrack->Charge() > 0);
611 fPtKp=KpTrack->Pt(),fPhiKp=KpTrack->Phi(),fEtaKp=KpTrack->Eta();
614 UInt_t detUsedP = fPIDCombined->ComputeProbabilities(KpTrack, PIDResponse, probP);
617 fPIDCombined->GetPriors(KpTrack, oldpP, PIDResponse, detUsedP);
620 nSigmaTPC = PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kProton);
622 if(! (TMath::Abs(nSigmaTPC) < 5)) continue;
624 Int_t tofMatch1 = (KpTrack->GetStatus() & AliVTrack::kTOFout) && (KpTrack->GetStatus() & AliVTrack::kTIME);
627 Int_t labelK = TMath::Abs(KpTrack->GetLabel());
628 AliAODMCParticle *mcp1 = (AliAODMCParticle*)mcArray->At(labelK);
629 pdg1 = TMath::Abs(mcp1->GetPdgCode());
633 fPidKp = Int_t(probP[4]*100);
636 if(!IsChannelValid(TMath::Abs(KpTrack->Eta()))){
637 // remove this tof hit
638 fPIDCombined->SetDetectorMask(AliPIDResponse::kDetTPC);
639 detUsedP = fPIDCombined->ComputeProbabilities(KpTrack, PIDResponse, probP);
640 fPIDCombined->SetDetectorMask(AliPIDResponse::kDetTPC|AliPIDResponse::kDetTOF);
641 fPidKp = Int_t(probP[4]*100);
645 if(probP[4] > probP[3] && probP[4] > probP[2] && probP[4] > probP[0]) fPidKp += 128; // max prob
648 nSigmaTOF = PIDResponse->NumberOfSigmasTOF(KpTrack,AliPID::kElectron);
649 if(TMath::Abs(PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kElectron))<1) fElTOF[icentr]->Fill(fPtKp,nSigmaTOF);
650 if(TMath::Abs(nSigmaTOF)<1) fElTPC[icentr]->Fill(fPtKp,PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kElectron));
651 nSigmaTOF = PIDResponse->NumberOfSigmasTOF(KpTrack,AliPID::kPion);
652 if(TMath::Abs(PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kPion))<1) fPiTOF[icentr]->Fill(fPtKp,nSigmaTOF);
653 if(TMath::Abs(nSigmaTOF)<1) fPiTPC[icentr]->Fill(fPtKp,PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kPion));
654 nSigmaTOF = PIDResponse->NumberOfSigmasTOF(KpTrack,AliPID::kKaon);
655 if(TMath::Abs(PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kKaon))<1) fKaTOF[icentr]->Fill(fPtKp,nSigmaTOF);
656 if(TMath::Abs(nSigmaTOF)<1) fKaTPC[icentr]->Fill(fPtKp,PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kKaon));
658 nSigmaTOF = PIDResponse->NumberOfSigmasTOF(KpTrack,AliPID::kProton);
660 if(TMath::Abs(PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kProton))<1) fPrTOF[icentr]->Fill(fPtKp,nSigmaTOF);
661 if(TMath::Abs(nSigmaTOF)<1) fPrTPC[icentr]->Fill(fPtKp,PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kProton));
665 Float_t mismAdd = addMismatchForMC;
666 if(KpTrack->Pt() < 1) mismAdd = addMismatchForMC/KpTrack->Pt();
668 if(gRandom->Rndm() < mismAdd){
669 Float_t etaAbs = TMath::Abs(KpTrack->Eta());
670 Int_t channel = Int_t(4334.09 - 4758.36 * etaAbs -1989.71 * etaAbs*etaAbs + 1957.62*etaAbs*etaAbs*etaAbs);
671 channel = channel % 8736;
672 Float_t distIP = fHchannelTOFdistr->GetBinContent(channel);
674 // generate random time
675 Float_t timeRandom = fHmismTOF->GetRandom() + distIP*3.35655419905265973e+00;
677 KpTrack->GetIntegratedTimes(times);
678 nSigmaTOF = TMath::Abs(timeRandom - times[4])/PIDResponse->GetTOFResponse().GetExpectedSigma(KpTrack->P(), times[3], AliPID::kProton);
682 if(fCentrality < 20 && KpTrack->Pt() < 1.3 && KpTrack->Pt() > 1.2)fTOFTPCsignal->Fill(nSigmaTOF,nSigmaTPC);
683 nSigmaTOF = TMath::Abs(nSigmaTOF);
685 if(nSigmaTOF < 2) fPidKp += 256;
686 else if(nSigmaTOF < 3) fPidKp += 512;
691 nSigmaComb = TMath::Sqrt(nSigmaTOF*nSigmaTOF + nSigmaTPC*nSigmaTPC);
692 if(nSigmaTOF < 5 && fCentrality < 20 && KpTrack->Pt() < 1.3 && KpTrack->Pt() > 1.2){
693 fCombsignal->Fill(nSigmaComb);
696 nSigmaComb = TMath::Abs(nSigmaTPC);
699 // use sigmaTOF instead of sigmaComb
700 if(tofMatch1) nSigmaComb = nSigmaTOF;
702 if(nSigmaComb < 2) nSigmaComb = 2;
703 else if(nSigmaComb < 3) nSigmaComb = 3;
704 else if(nSigmaComb < 5) nSigmaComb = 4.99;
708 for(Int_t k=0;k < fNLambda;k++){ // find the Lambda which contains the positive track
709 if(i == fIpP[k]) iks = k;
712 if(fPtKp > 4.299) fPtKp = 4.299;
714 if(iks > -1 && fIpN[iks] > -1){
715 //for(Int_t j=0;j < ntrack;j++){ // loop on negative tracks
717 AliAODTrack* KnTrack = aodEvent->GetTrack(j);
726 if(!(KnTrack->Pt() > 0.3 && TMath::Abs(KnTrack->Eta()) < 0.8)) continue;
728 fPtKn=KnTrack->Pt(),fPhiKn=KnTrack->Phi(),fEtaKn=KnTrack->Eta();
731 UInt_t detUsedN = fPIDCombined->ComputeProbabilities(KnTrack, PIDResponse, probN);
733 fPIDCombined->GetPriors(KnTrack, oldpN, PIDResponse, detUsedN);
735 nSigmaTPC2 = PIDResponse->NumberOfSigmasTPC(KnTrack,AliPID::kPion);
737 if(! (TMath::Abs(nSigmaTPC2) < 5)) continue;
739 Int_t tofMatch2 = (KnTrack->GetStatus() & AliVTrack::kTOFout) && (KnTrack->GetStatus() & AliVTrack::kTIME);
742 Int_t labelK = TMath::Abs(KnTrack->GetLabel());
743 AliAODMCParticle *mcp2 = (AliAODMCParticle*)mcArray->At(labelK);
744 pdg2 = TMath::Abs(mcp2->GetPdgCode());
748 fPidKn = Int_t(probN[2]*100);
751 if(probN[2] > probN[3] && probN[2] > probN[4] && probN[2] > probN[0]) fPidKn += 128; // max prob
753 nSigmaTOF2 = PIDResponse->NumberOfSigmasTOF(KnTrack,AliPID::kPion);
755 nSigmaTOF2 = TMath::Abs(nSigmaTOF2);
757 if(nSigmaTOF2 < 2) fPidKn += 256;
758 else if(nSigmaTOF2 < 3) fPidKn += 512;
761 px = KpTrack->Px() + KnTrack->Px();
762 py = KpTrack->Py() + KnTrack->Py();
763 pz = KpTrack->Pz() + KnTrack->Pz();
764 E = TMath::Sqrt(KpTrack->P()*KpTrack->P() + 0.938e-01*0.938e-01);
765 E += TMath::Sqrt(KnTrack->P()*KnTrack->P()+ 1.39e-01*1.39e-01);
767 ksV.SetPxPyPzE(px,py,pz,E);
768 fMassV0 = fMassLambda[iks];
770 if(fMassV0 < invMmin || fMassV0 > invMmax) continue;
773 fPtLambdaC = ksV.Pt();
774 fEtaLambda = ksV.Eta();
775 fPhiLambdaC = ksV.Phi();
778 nSigmaComb2 = TMath::Sqrt(nSigmaTOF2*nSigmaTOF2+ nSigmaTPC2*nSigmaTPC2);
780 nSigmaComb2 = TMath::Abs(nSigmaTPC2);
783 // use sigmaTOF instead of sigmaComb
784 if(tofMatch2) nSigmaComb2 = nSigmaTOF2;
786 if(nSigmaComb2 < 2) nSigmaComb2 = 2;
787 else if(nSigmaComb2 < 3) nSigmaComb2 = 3;
788 else if(nSigmaComb2 < 5) nSigmaComb2 = 4.99;
789 else nSigmaComb2 = 6;
791 Bool_t isTrue = kFALSE;
794 Int_t labelP = TMath::Abs(KpTrack->GetLabel());
795 Int_t labelN = TMath::Abs(KnTrack->GetLabel());
797 if(labelP > -1 && labelN > -1){
798 AliAODMCParticle *partP = (AliAODMCParticle*)mcArray->At(labelP);
799 AliAODMCParticle *partN = (AliAODMCParticle*)mcArray->At(labelN);
801 Int_t mP = partP->GetMother();
802 Int_t mN = partN->GetMother();
803 if(mP == mN && mP > -1){
804 AliAODMCParticle *partM = (AliAODMCParticle*)mcArray->At(mP);
805 Int_t pdgM = partM->GetPdgCode();
806 if(TMath::Abs(pdgM) == 3122) isTrue = kTRUE;
812 Double_t deltaphi1 = KpTrack->Phi() - fPsi;
813 Double_t deltaphi2 = KnTrack->Phi() - fPsi;
815 while(deltaphi1 > TMath::Pi()) deltaphi1 -= TMath::Pi()*2;
816 while(deltaphi1 < -TMath::Pi()) deltaphi1 += TMath::Pi()*2;
817 while(deltaphi2 > TMath::Pi()) deltaphi2 -= TMath::Pi()*2;
818 while(deltaphi2 < -TMath::Pi()) deltaphi2 += TMath::Pi()*2;
820 if(fPtKn > 4.299) fPtKn = 4.299;
822 Float_t xTOfill[] = {fPtLambdaC,KpTrack->Eta(),fPtKp,fPtKn,(fPidKp%128)*0.01,(fPidKn%128)*0.01,tofMatch1,tofMatch2,isTrue,nSigmaComb,nSigmaComb2,deltaphi1,deltaphi2,fPsi};
823 Float_t xTOfill2[] = {fPtLambdaC,KpTrack->Eta(),fPtKn,fPtKp,(fPidKn%128)*0.01,(fPidKp%128)*0.01,tofMatch2,tofMatch1,isTrue,nSigmaComb2,nSigmaComb,deltaphi2,deltaphi1,fPsi};
827 while(fPtLambdaMin[ipt] < fPtLambdaC && ipt < nPtBin){
831 if(ipt < 0) ipt = 0; // just to be sure
833 if(TMath::Abs(fEtaLambda) < 0.8 && fPtKp > 0.3 && fPtKn > 0.3){
834 if(isLambda) fContPid->Fill(0,fMassV0,fCentrality,xTOfill);
835 else fContPid2->Fill(0,fMassV0,fCentrality,xTOfill2);
840 } // end analysi Lambda
843 //_____________________________________________________________________________
844 Float_t AliAnalysisTaskLambdaBayes::GetVertex(AliAODEvent* aod) const
849 const AliAODVertex* vtxAOD = aod->GetPrimaryVertex();
852 if(vtxAOD->GetNContributors()>0)
853 zvtx = vtxAOD->GetZ();
857 //_____________________________________________________________________________
858 void AliAnalysisTaskLambdaBayes::Terminate(Option_t *)
861 Printf("Terminate()");
863 //=======================================================================
864 void AliAnalysisTaskLambdaBayes::SelectLambda(){
869 Int_t nV0s = fOutputAOD->GetNumberOfV0s();
872 for (Int_t i=0; i!=nV0s; ++i) {
873 myV0 = (AliAODv0*) fOutputAOD->GetV0(i);
875 if(myV0->Pt()<0.1 || TMath::Abs(myV0->Eta()) > 0.8) continue; // skipping low momentum
876 Int_t pass = PassesAODCuts(myV0,fOutputAOD,1); // check for Lambda
878 if(pass==1) dMASS = myV0->MassLambda();
879 else dMASS = myV0->MassAntiLambda();
881 Float_t massKs = myV0->MassK0Short();
883 if(TMath::Abs(dMASS-1.115)/0.005 < 8 && TMath::Abs(massKs - 0.497)/0.005 > 8){
884 AliAODTrack *iT=(AliAODTrack*) myV0->GetDaughter(0); // positive
885 AliAODTrack *jT=(AliAODTrack*) myV0->GetDaughter(1); // negative
887 iT=(AliAODTrack*) myV0->GetDaughter(1); // positive
888 jT=(AliAODTrack*) myV0->GetDaughter(0); // negative
890 fPhiLambda[fNLambda] = myV0->Phi();
891 fPtLambda[fNLambda] = myV0->Pt();
892 fIpP[fNLambda] = FindDaugheterIndex(iT);
893 fIpN[fNLambda] = FindDaugheterIndex(jT);
896 Int_t itemp = fIpP[fNLambda];
897 fIpP[fNLambda] = fIpN[fNLambda];
898 fIpN[fNLambda] = itemp;
901 fMassLambda[fNLambda] = dMASS;
902 if(fIpP[fNLambda] > -1 && fIpN[fNLambda] > -1){
911 //=======================================================================
912 Int_t AliAnalysisTaskLambdaBayes::PassesAODCuts(AliAODv0 *myV0, AliAODEvent *tAOD,Int_t specie)
914 if (myV0->GetOnFlyStatus() ) return 0;
916 //the following is needed in order to evualuate track-quality
917 AliAODTrack *iT, *jT;
918 AliAODVertex *vV0s = myV0->GetSecondaryVtx();
919 Double_t pos[3],cov[6];
921 vV0s->GetCovarianceMatrix(cov);
922 const AliESDVertex vESD(pos,cov,100.,100);
926 iT=(AliAODTrack*) myV0->GetDaughter(0);
934 iT=(AliAODTrack*) myV0->GetDaughter(iPos); // positive
936 jT=(AliAODTrack*) myV0->GetDaughter(iNeg); // negative
938 Bool_t trkFlag = iT->TestFilterBit(fFilterBit);
939 if(!trkFlag) return 0;
940 Bool_t trkFlag2 = jT->TestFilterBit(fFilterBit);
941 if(!trkFlag2) return 0;
944 pvertex[0]=tAOD->GetPrimaryVertex()->GetX();
945 pvertex[1]=tAOD->GetPrimaryVertex()->GetY();
946 pvertex[2]=tAOD->GetPrimaryVertex()->GetZ();
948 Double_t dDL=myV0->DecayLengthV0( pvertex );
949 if(dDL < 0.5 || dDL > 25) return 0;
951 Double_t dDCA=myV0->DcaV0Daughters();
952 if(dDCA >0.5) return 0;
954 Double_t dCTP=myV0->CosPointingAngle( pvertex );
955 if(dCTP < -1) return 0;
957 // AliESDtrack ieT( iT );
958 // Double_t dD0P=ieT.GetD(pvertex[0],pvertex[1],tAOD->GetMagneticField());
959 // if(TMath::Abs(dD0P) < 0]) return 0;
961 // AliESDtrack jeT( jT );
962 // Double_t dD0M=jeT.GetD(pvertex[0],pvertex[1],tAOD->GetMagneticField());
963 // if(TMath::Abs(dD0M) < 0) return 0;
965 // Double_t dD0D0=dD0P*dD0M;
966 // if(dD0D0>0) return 0;
968 // Double_t dETA=myV0->Eta();
969 // if(dETA <-0.8) return 0;
970 // if(dETA >0.8) return 0;
972 // Double_t dQT=myV0->PtArmV0();
973 // if(specie==0) if(dQT<???) return 0;
975 Double_t dALPHA=myV0->AlphaV0(); // AlphaV0 -> AODRecoDecat::Alpha -> return 1.-2./(1.+QlProng(0)/QlProng(1));
976 if(myV0->ChargeProng(iPos)<0) dALPHA = -dALPHA; // protects for a change in convention
978 if(specie==1 && dALPHA<0) return 2; // antilambda
979 return 1; // Ks or lambda
981 //-------------------------------------------------------------------------
982 Int_t AliAnalysisTaskLambdaBayes::FindDaugheterIndex(AliAODTrack *trk){
983 Int_t ntrack = fOutputAOD->GetNumberOfTracks();
985 for(Int_t i=0;i < ntrack;i++){ // loop on tracks
986 AliAODTrack* track = fOutputAOD->GetTrack(i);
987 if(track == trk) return i;
990 printf("Daughter for %p not found\n",trk);
993 //-------------------------------------------------------------------------
994 Int_t AliAnalysisTaskLambdaBayes::IsChannelValid(Float_t etaAbs){
995 if(!fIsMC) return 1; // used only on MC
997 if( fTypeCol==2){ // LHC10h or LHC11h because of TOF matching window at 3 cm
998 Int_t channel = Int_t(4334.09 - 4758.36 * etaAbs -1989.71 * etaAbs*etaAbs + 1957.62*etaAbs*etaAbs*etaAbs);
1000 if(!(channel%20)) return 0; // 5% additional loss in MC